compute-mfcc-feats --use-energy=false --cepstral-lifter=22 --dither=0  --preemphasis-coefficient=0.97 --energy-floor=1 --raw-energy=false --remove-dc-offset=true --round-to-power-of-two=true --snip-edges=true  --window-type="povey" scp,p:test.scp ark,t:mfcc-prep.txt